I got tired of jumping between 10 different tabs to format JSON, decode a JWT, or generate a QR code. So I built DevToolsHub.

What it does

23 free developer utilities in one place — no login, no signup,

no data stored. Just paste and go.

Tools available

JSON Formatter + JSON Diff

JWT Decoder

Regex Tester with live highlighting

Base64 Encoder/Decoder

Password Generator

Hash Generator (MD5, SHA-1, SHA-256, SHA-512)

QR Code Generator

Color Converter (HEX/RGB/HSL)

Timestamp Converter

URL Encoder & URL Parser

HTML & CSS Minifier

HTML Entity Encoder

Text Compare

Text Case Converter

Word Counter

Number Base Converter

Lorem Ipsum Generator

Unix Permissions Calculator

Cron Expression Generator

Image ↔ Base64

Markdown Preview

SQL Formatter

JSON to C# Model

Tech stack

Blazor Server · ASP.NET Core · MudBlazor · Monaco Editor · Azure

Try it

👉 www.devtoolshub.info

Feedback and suggestions welcome — drop a comment or email me at [email protected]

This is my first web application I have…